New Covenant Command
"But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God."
Matthew 4:4 (KJV)
Old Covenant Command
"And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the LORD doth man live."
Deuteronomy 8:3 (KJV)
Even eating to the extreme healthy can not provide you a quality life without having the Wisdom that God can provide for your life. The Fear of the Lord is the beginning of Wisdom. He is a light in a dark path.